Frederick robert bodley



ATES

FREDERICK ROBERT BODLEY, OB LONDON, ENGLAND.

N UT-LOCK.

SIEIECIIEICATION forming part of Letters Patent N0. 525,328, dated. September 4, 1894.. Applioation filed J'annary 30 1894:. Serial N0. 493.542. (N'o model.) Patented in England November 23, 1893, N0. 22,419.

T0 all whom z't may concern:

Be it known that I, FREDERIOK ROBERT BODLEY, builder, a subject cf the Queen cf Great Britain, residing at 9 Alleyne Terrace, Park Road, West Dulwich, London, England, have invented -Improvements in Locking Nuts, (for which I have obtained Letters Patent in Great Britain, N0. 22,419, dated N ovembei 23, 1893,) of which the following is a specification.

This invention relates to a safety nut locking device and is especially designed to produce a cheap, simple and practicable means of locking the nuts on holte used in securing railway rails and is also applicable t0 locking nuts upon bolts used for any other purposcs where they are subjected er liable to great vibration and consequently require a means 0f locking Same with absolute safety.

In order that my present invention may be easily understood and readily carried into practice I will proceed to describe the same with reference to the drawings hereunto annexed.

Figure 1 is a longitudinal view of bolt with nut locked thereon according to my present invention. Fig. 2 is a longitudinal sectional viewofthenut-and Iockingappliance-upon the threaded part cf the bolt. Fig. 3 is an end view of Figs. l and 2-looking in the di-- rection of the arrow w. Fig. 4 is a view of the back of the nutremoved from the bolt- 5. e., looking in the opposite direction of the arrow 0c. Fig. 5 is a vertical section of the nuton line ll Fig. 4. Fig. 6 shows the locking pin known as a linch pin. Fig. 7 is a view cf the washer.

a is the bolt.

b b are two V-shaped longitudinal parallel grooves cut or formed in the threaded part cf the bolt and of a greater depth than said threadsaid 'two grooves b b being advantageously distant from one another at a quarter of the circle cf the bolt or thereabout.

c is a longitudinal hole through nut dwithcountersink at the back face of nut-as shown.

e is a washer (to fit closely the threaded part of bolt) cf special construction, viz., with a single tooth fon the inner edge thereof and the point cf tightness (or otherwise) as de-' sired and thento safely lock and firmly secure this nut exactly in its position the specially constructed washer e is placed on the boltthe tooth ffitting into the one or the other cf the grooves b so that one of the holes h on said washer will fit over the split end cf the pin 71 which split ends are then opened and turned backward toward the washer and thereby the washer is'fixed to the nut and as the tooth f is heldin groove b therefore the washer e cannot revolve and consequently the nut d Cannot revolve and is thus locked and irnmovably hold in position. T0 remove the nut-the split ends cf pin i are pinched o1 pressed together so as to permit the-washer e to be drawn oft said pin z and ofi the bolt a whereupon the nut d is again free to be revolved in any suitable manner. Theposition of the holes h in the washer c are advantageously determined and arranged as follows, vizzThe holes h are exactly concentric and these holes down one side cf the washer to the left of tooth foccupy exactly the position cf the solid parts between the holes on the other side and vice vers'a,so that, when the washer is placed on the bolt a, in case one of the holes therein does not correspond with the position cf the pin i by withdrawing and reversing the washer then a hole will be found to exactly correspond t0 the position of 7: and fit over the same.

I find it advantageous not to place any hole 01 holes h just over the tooth f so thatthe latter may not be thereby weakened in any way.

Having thus described my invention, what I clai1n as new, and. desire to secure by Letters Patent of the United States, is-

The combination with a screw threaded bolt having a longitudinal groove in the threaded part thereof, of a nut fitting said holt, a linch or other of said holes will always fit over said pin ca.rried in said nut and a washer fitting lineh pin whacever its position substantially said holt a.nd having a tooth 011 the inner edge as and for the purposes SGI] forth. thereof adapted 1:0 fit in said loqgitudinal FREDERIGK ROBERT BODLEY 5 groove and thereby prevent rotat1on 0f the washer andaseries of coneentric holes around Witnesses: such washer adapted to fit the said linch pin HENRY BIRKBECK, and arranged in such manner that the said 34 Southampton Bm'ldz'ngs, London, Engholes down one side oecupy the position 0f Zcmcl.

10 the solid concentric portion of the washer GEORGE W. KEY,

down the other side and vice versa so that one Oler7c 150 the above. 

